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If the straight lines `ax^2 +2hxy + by^2 +2gx + 2fy + c = 0` intersect on the X-axis, then
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If the straight lines `ax^2 +2hxy + by^2 +2gx + 2fy + c = 0` intersect on the X-axis, then
#𝑎𝑥^2 +2ℎ𝑥𝑦 + 𝑏𝑦^2= 0 𝑟𝑒𝑝𝑟𝑒𝑠𝑒𝑛𝑡𝑠 𝑎 𝑝𝑎𝑖𝑟 𝑜𝑓 𝑙𝑖𝑛𝑒𝑠 𝑝𝑎𝑠𝑠𝑖𝑛𝑔 𝑡ℎ𝑟𝑜𝑢𝑔ℎ 𝑡ℎ𝑒 𝑜𝑟𝑖𝑔𝑖𝑛 𝑖𝑓 ℎ^2 – 𝑎𝑏= 0...
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